mtd: parsers: Move OF parser

This moves the OF/device tree partition parser down into the
parser subdirectory. No functional change.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Richard Weinberger <richard@nod.at>

1 files changed, 0 insertions, 236 deletions

diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c
deleted file mode 100644
index 3caeabf27987..000000000000
--- a/drivers/mtd/ofpart.c
+++ /dev/null
@@ -1,236 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Flash partitions described by the OF (or flattened) device tree
- *
- * Copyright © 2006 MontaVista Software Inc.
- * Author: Vitaly Wool <vwool@ru.mvista.com>
- *
- * Revised to handle newer style flash binding by:
- *   Copyright © 2007 David Gibson, IBM Corporation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/of.h>
-#include <linux/mtd/mtd.h>
-#include <linux/slab.h>
-#include <linux/mtd/partitions.h>
-
-static bool node_has_compatible(struct device_node *pp)
-{
-	return of_get_property(pp, "compatible", NULL);
-}
-
-static int parse_fixed_partitions(struct mtd_info *master,
-				  const struct mtd_partition **pparts,
-				  struct mtd_part_parser_data *data)
-{
-	struct mtd_partition *parts;
-	struct device_node *mtd_node;
-	struct device_node *ofpart_node;
-	const char *partname;
-	struct device_node *pp;
-	int nr_parts, i, ret = 0;
-	bool dedicated = true;
-
-
-	/* Pull of_node from the master device node */
-	mtd_node = mtd_get_of_node(master);
-	if (!mtd_node)
-		return 0;
-
-	ofpart_node = of_get_child_by_name(mtd_node, "partitions");
-	if (!ofpart_node) {
-		/*
-		 * We might get here even when ofpart isn't used at all (e.g.,
-		 * when using another parser), so don't be louder than
-		 * KERN_DEBUG
-		 */
-		pr_debug("%s: 'partitions' subnode not found on %pOF. Trying to parse direct subnodes as partitions.\n",
-			 master->name, mtd_node);
-		ofpart_node = mtd_node;
-		dedicated = false;
-	} else if (!of_device_is_compatible(ofpart_node, "fixed-partitions")) {
-		/* The 'partitions' subnode might be used by another parser */
-		return 0;
-	}
-
-	/* First count the subnodes */
-	nr_parts = 0;
-	for_each_child_of_node(ofpart_node,  pp) {
-		if (!dedicated && node_has_compatible(pp))
-			continue;
-
-		nr_parts++;
-	}
-
-	if (nr_parts == 0)
-		return 0;
-
-	parts = kcalloc(nr_parts, sizeof(*parts), GFP_KERNEL);
-	if (!parts)
-		return -ENOMEM;
-
-	i = 0;
-	for_each_child_of_node(ofpart_node,  pp) {
-		const __be32 *reg;
-		int len;
-		int a_cells, s_cells;
-
-		if (!dedicated && node_has_compatible(pp))
-			continue;
-
-		reg = of_get_property(pp, "reg", &len);
-		if (!reg) {
-			if (dedicated) {
-				pr_debug("%s: ofpart partition %pOF (%pOF) missing reg property.\n",
-					 master->name, pp,
-					 mtd_node);
-				goto ofpart_fail;
-			} else {
-				nr_parts--;
-				continue;
-			}
-		}
-
-		a_cells = of_n_addr_cells(pp);
-		s_cells = of_n_size_cells(pp);
-		if (len / 4 != a_cells + s_cells) {
-			pr_debug("%s: ofpart partition %pOF (%pOF) error parsing reg property.\n",
-				 master->name, pp,
-				 mtd_node);
-			goto ofpart_fail;
-		}
-
-		parts[i].offset = of_read_number(reg, a_cells);
-		parts[i].size = of_read_number(reg + a_cells, s_cells);
-		parts[i].of_node = pp;
-
-		partname = of_get_property(pp, "label", &len);
-		if (!partname)
-			partname = of_get_property(pp, "name", &len);
-		parts[i].name = partname;
-
-		if (of_get_property(pp, "read-only", &len))
-			parts[i].mask_flags |= MTD_WRITEABLE;
-
-		if (of_get_property(pp, "lock", &len))
-			parts[i].mask_flags |= MTD_POWERUP_LOCK;
-
-		i++;
-	}
-
-	if (!nr_parts)
-		goto ofpart_none;
-
-	*pparts = parts;
-	return nr_parts;
-
-ofpart_fail:
-	pr_err("%s: error parsing ofpart partition %pOF (%pOF)\n",
-	       master->name, pp, mtd_node);
-	ret = -EINVAL;
-ofpart_none:
-	of_node_put(pp);
-	kfree(parts);
-	return ret;
-}
-
-static const struct of_device_id parse_ofpart_match_table[] = {
-	{ .compatible = "fixed-partitions" },
-	{},
-};
-MODULE_DEVICE_TABLE(of, parse_ofpart_match_table);
-
-static struct mtd_part_parser ofpart_parser = {
-	.parse_fn = parse_fixed_partitions,
-	.name = "fixed-partitions",
-	.of_match_table = parse_ofpart_match_table,
-};
-
-static int parse_ofoldpart_partitions(struct mtd_info *master,
-				      const struct mtd_partition **pparts,
-				      struct mtd_part_parser_data *data)
-{
-	struct mtd_partition *parts;
-	struct device_node *dp;
-	int i, plen, nr_parts;
-	const struct {
-		__be32 offset, len;
-	} *part;
-	const char *names;
-
-	/* Pull of_node from the master device node */
-	dp = mtd_get_of_node(master);
-	if (!dp)
-		return 0;
-
-	part = of_get_property(dp, "partitions", &plen);
-	if (!part)
-		return 0; /* No partitions found */
-
-	pr_warn("Device tree uses obsolete partition map binding: %pOF\n", dp);
-
-	nr_parts = plen / sizeof(part[0]);
-
-	parts = kcalloc(nr_parts, sizeof(*parts), GFP_KERNEL);
-	if (!parts)
-		return -ENOMEM;
-
-	names = of_get_property(dp, "partition-names", &plen);
-
-	for (i = 0; i < nr_parts; i++) {
-		parts[i].offset = be32_to_cpu(part->offset);
-		parts[i].size   = be32_to_cpu(part->len) & ~1;
-		/* bit 0 set signifies read only partition */
-		if (be32_to_cpu(part->len) & 1)
-			parts[i].mask_flags = MTD_WRITEABLE;
-
-		if (names && (plen > 0)) {
-			int len = strlen(names) + 1;
-
-			parts[i].name = names;
-			plen -= len;
-			names += len;
-		} else {
-			parts[i].name = "unnamed";
-		}
-
-		part++;
-	}
-
-	*pparts = parts;
-	return nr_parts;
-}
-
-static struct mtd_part_parser ofoldpart_parser = {
-	.parse_fn = parse_ofoldpart_partitions,
-	.name = "ofoldpart",
-};
-
-static int __init ofpart_parser_init(void)
-{
-	register_mtd_parser(&ofpart_parser);
-	register_mtd_parser(&ofoldpart_parser);
-	return 0;
-}
-
-static void __exit ofpart_parser_exit(void)
-{
-	deregister_mtd_parser(&ofpart_parser);
-	deregister_mtd_parser(&ofoldpart_parser);
-}
-
-module_init(ofpart_parser_init);
-module_exit(ofpart_parser_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Parser for MTD partitioning information in device tree");
-MODULE_AUTHOR("Vitaly Wool, David Gibson");
-/*
- * When MTD core cannot find the requested parser, it tries to load the module
- * with the same name. Since we provide the ofoldpart parser, we should have
- * the corresponding alias.
- */
-MODULE_ALIAS("fixed-partitions");
-MODULE_ALIAS("ofoldpart");